Studio bed



Feb. 14, 1939. E. J. STAUFFR Er AL 1411865 STUDIO BED Original Filed0G11. 13, 1936 3 Sheets'-Sheet l i 6. e 1 1, Nm @W f M@ @mi mvm/ 5 1lNm) I. l! w N wmmm@ @w S9) 1 EL@ MW R31 1cm, NW @m Feb. 14, 1939. E. J.sTAur-'FER ET AL STUDIO BED Original Filed Oct. 13, 1936 3 Sheets-Sheet2 Feb. 14, 1939. v E. J. STAUFFER ET AL 2,146,855

STUDIO BFID Original Filed Oct. 13, 1956 5 Sheets-Sheet 3 Patented Feb.14, 1939 UNITED' STATES PATENT GFFICE STUDIO BED Original applicationOctober 13, 1936, Serial No.

Divided and this application July 28,

1937, Serial N0. 156,152

5 Claims.

This invention relates to improvements in studio beds and consists ofthe matters hereinafter described and more particularly pointed out inthe appended claims.

The invention relates to a type of davenport or divan which includes asupplemental frame normally telescoped within the main frame of thedavenport, but capable of withdrawal for the purpose of extending themain frame to provide a bed.

The object of the invention is to provide legs for the supplementalframe at its back side, which is adjacent to the main frame When thesupplemental frame is in extended position, which legs are automatically.folded up out of the way when the supplemental frame is returned to itsnormal position in the main frame, and are automatically brought tovertical supporting position when the supplemental frame is withdrawnfrom the main frame to its outerlimit of movement.

These and other objects and advantages of the invention will appear morefully as We proceed with the specification.

This application is a division of an application led by us October' 13,1936, Serial No. 105,388.

In the drawings:

Figure 1 is a top plan view showing the main frame at the right and thesupplemental frame at the left as they would appear When'entirelyseparated, but with the supplemental frame in alignment with the mainframe as in the pathl it would follow when being moved into and out ofthe main frame.

Figure 2 is an end view of the supplemental frame,

Figure 3 is an end View showing the supplemental and main frame, withthe supplemental frame Withdrawn to its limit from the main frame.

Figure 4 is a perspective View of the back side of the supplementalframe,

Figure 5 is a perspective View of the front side of the main frame.

Figure 6 is an end view of the main frame, with the supplemental framepushed into its normal position entirely Within the main frame andshowing in dotted lines the rails and mechanism connecting the two.

Figure 7 is a detail perspective view to be more fully describedhereafter in the specification.

Figure 8 is a plan sectional view on an enlarged scale showing thedetails of the mechanism at one end of the supplemental and main frames.

Figure 9 is a view representing a section of Figure 8 in a planeindicatedby the line 9-9 of Figure 8.

Figure 10 is a detail view of a locking device included in themechanism.

Figure 11 is a sectional view showing said locking device in position.

Figure 12 is an end elevation of a part of the mechanism in the positionoccupied as the one leg of the supplemental frame begins to be folded upby the operation of the mechanism when returning the supplemental frameto the main frame. v

Referring now to that embodiment of the invention illustrated in thedrawings: I0 indicates the main frame of a studio bed and II, asupplemental frame adapted to be telescoped laterally thereinto. Themain frame comprises end members I2, I2, back and front members I3, I4,mounted on pedestals I5, I5, which support the main frame. Thesupplemental frame II comprises end members I6, I6 and front and backmembers Il, I8. Supporting legs I9, I9 are xed to the front members Il.These parts are all of familiar construction and need no furtherdescription. Like housings y20, 20 are mounted at the back cornerson theend members I6, I6 of the supplemental frame Il. An equalizing rod orshaft 2l, located below theV plane of and near the frame member IB, isrotatively mounted in saidv housings. l22, 22 indicate ratchet wheelsfixed on said shaft 2I within said housings. The shaft 2l projects atits ends, as indicated at 2Ia, beyond said housings for a purposepresently to be described. A hook-like keeper 23 is pivoted in eachhousing adjacent the ratchet wheel 22 therein on a pin 24, so as to becapable of an up-and-down swinging movement in a plane parallel to saidratchet Wheel (see Figures 10 and 11). Said keeper has a laterallydisposed tongue 25 which is adapted to engage between the teeth of Vsaidratchet wheel when the keeper is permitted to drop by gravity. Thislocks the ratchet Wheel and also the equalizer shaft 2| againstrotation. When this hook end 23a is engaged from below in a manner to belater described, th-e keeper 23 is swung upwardly on its axis pin 24 soas to release the ratchet wheel 22.

On the ends of the main frame are provided horizontal metal channels 21,2l which provide ways for the housings 20, 20 when the supplementalframe II is telescoped into the main frame IU. Each channel 21 has abottom ilange or rail 28 provided with holes 29 spaced longitudinally ofthe rail, adapted for engagement as a rack with the teeth of anassociated ratchet wheel 22. The holes 29 in the rails 28 on the twoends of the main frame are disposed in lines extending parallel to thefront andV back members of the main frame. Thus, when the ratchet wheels22 are engaged in said holes and the supplemental frame is pushed inwardor outward with reference to the main frame, the equalizing shaft 2|,rotating with said ratchet wheels, will insure an identical equalmovement of each end member I6, |61 of the supplemental.

frame with reference to each end member I2, I2 of the main frame. Y

The front ends of thexrails 28l are inclined` downwardly, as indicatedat 23a, 28a (see Figures 3 and 5) and the web of the channel of each Wayis formed to provide an abutment 30 at the end f; said inclined part.,and; at One Side Off the. line of the ratchet holes 29, in a position tobe struckjbyA the associated end 2Ia of the equalizing shaft-.the two.,abutments acting to arrest and limit the withdrawal movement of thesupplemental frame from the main frame.

Short plates 28h, extend parallel to the downturned` ends 28a of theyrails 28 andare spaced above the same, so that when the housings 20 arepushed backward. into the ways provided by the channels 21, the ends.21a of the equalizer bar willn engagethve bottom edges of said platesand be held s o that the ratchet wheels 22Y are held in engagement withthe rack presented by the holes 29 on the rails 28. The plates 5281terminate short of the abutments 30` to leave spacesrfor the passage ofthe projecting. ends 2 la of the equalizer bar 2| and the engagement ofthe ratchet wheels 22 with the ratchet holes 29 in the rails 28 whenfirst assembling and connecting the supplemental frame with the maintrama In this operation the hooked ends 23a. of the keepers 2 3 engagethe inclined ends 28a and are lifted so as to disengage the lateraltongues 25 of said keepers from their respective ratchet wheels 22.,which are then free to rotate. The channels 21, 211 have top horizontalrails 30a, providing the top of the ways in which the housings 29, 20travel and each housing has struckv up from it a lug 3h! (see. Figuresland 11) for guiding engagement with said top rail, which holds theassociated ratchet wheel in operative engagement with thebottom railafter the shaft ends.

ends Zia. have passed rearwardly` beyond the plates 2817.

32, 3,2. indicate legsr pivotally mounted upon the end members I6, I3ofthe supplemental frame at points spaced forward ofthe housings 29, 20.33, 33' indicate angle plates having` upright memb ers 33a, 33a secured,respectively, to the end members I6, |6 of the supplemental frame andhorizontal members 331233bi secured, respectively, tothe bottom sides ofsaid end members and the back members, Each. leg 3,2 is pivoted to anupright member 33a of the angle member by a loose, rivet 34. Ahorizontally, movable latch plate 35 is pivoted by a rivet 36jto. thehorizontal member of each plate 33. Said latch plate is notched on itsedge to provide spaced, opposed shoulders 31,V 31, which are adapted toengage opposite edges ofthe associated pivoted leg 32 and lock it inverticalposition. Each latch plate is provided with a depending ange 38formed to present` front and back cams 39Y at its opposite Each latchplate is normally held in engagement with the inner face of theassociated leg 32 by means of a coiled spring 40 taking between an ear4| iixed to the horizontal member 33h of the angle plate 33 and thedepending ilange 38 of the latch plate 35. At the top of each leg 32 andextending towards the associated housing 20, is provided a heel 42. Alaterally extending shoulder 43 on the angle plate 33 limits theswinging movement of the leg 32 towards Vthe back by its engagement withthe top side of said heel.

44, 44 indicate plates xed to and rising above the front member |4 ofthe main frame in a line of travel of the heels 42 of the legs 32 and ofthe cams 39, 39 of the latch plates 35. (See Figures 1- and 5.)

The end member IG of the supplemental frame have xed to their outerfaces near the front of the supplemental frame, inclined plates 41-having notches 46 (see Figures 2 and 3), which notches are adapted toengage the top edgest of the plates 4,4, 4 4 on the main frame, when thesupplementall frame has been pushed fully home into the `main framethebottom edges ofthe` plates 41 sliding up on the topedges ot the plates44 toraise the front of said supplemental frame until the plates 44 comeabreast of the notches 43 when the front end of the supplemental framedrops With said notches 46 in locked engagement with the plates 44.

'Ifo assemble the supplemental frame with the mainframe, with theoperatingdevices hereinbefore described properly connected, we proceedas follows: Consider the two frames arranged in alignment, asin Figure1f, with the supplemental frame supported on its legs |9 and 32. Theback of the supplemental frame is brought to position in close proximityto the main frame, with the ends 2 Ia of the equalizer bar above thespacesbetwen the plates 28h and the abutments 39 at the front end ofthe'channel bars 21. The back end of the supplemental frame is thendropped. This brings the ratchet Wheels 22, 22` intol engagement withthe holes 29 of the rack rails 28. vIn this way an. identical tooth ineach ratchet wheel Vis brought into engagement with the end hole 29 ofthe rack bar. At the same time the hook end 23a` of each keeper 23Vengages the rail end 28a and lifts the keeper, thus disengaging thetongue 25 from the associated ratchet wheel 22, leaving the ratchetwheels and equalizer shaft 2| free to rotate.

The supplemental frame is now pushed into the main frame. In the firstpart of this movement, the rear cams 39A of the latch plates 35 strikethe sides of the upright bars 44, as illustrated in Figure 1. Thisswings the latch plates 35 away from the legs 32, so as to free saidlegs for pivotal movement. As the supplemental frame is further pushedinto the main frame, the legs 32 strike the top edges of the uprightplates 44 on the main frame and are swung upwardly on their pivots 34 tohorizontal position,--the latch plates being maintained in inoperativeposition by reason of the engagement of their flangesA 38 as they passalong in contact with the vertical edges of the upright plates 44.

In the further movement of the supplemental frame into the main frame,the bottom ends or the rollers thereon of the legs 32, ride on the rails28 of the channels 21. The movement of the supplemental frame iscontinued until it has been shoved fully home into the main frame. Justas or before it reaches this position, lugs 45 extending from the rails28 near the backmain frame member I3, are struck by the heels 42, now invertical instead of horizontal position. In the movement oi thesupplemental frame into the main frame, the latch plates 35 have beenheld from engaging position by the legs 32. lll/'hen the heels arestruck as above described, the legs are disengaged from the latches andthe heels come into locking position between the .shoulders 3l, (il ofthe latches 35 to hold said legs in a position above the rails 28, sothat when the supplemental frame is withdrawn from the main frame, saidlegs will not strike the upright plates 44 at the front side of" themain frame (as shown in dotted lines in Figure 6). Just as thesupplemental frame reaches its innermost position within the main frame,it is locked in this telescoped relation by the engagement of thenotches e5 0n the inclined plates 41 with the upright plates 44 on themain frame.

To reverse the operation and bring the supplemental frame into extendedrelation, the front side of the supplemental frame is rst lifted todisengage the notched plates 41 from engagement with the plates 44. Thesupplemental frame is then withdrawn,-the legs 32 in this withdrawalmovement finally passing above the plates 44. When the supplementalframe has almost reached its outermost position, the forward cams 3Q onthe latch plates strike the plates 44 and disengage the latches fromtheir locked relation with the heels 42 of said legs. This permits thelegs to drop by gravity towards vertical position and as the heels 42pass the plates 44, the bottom ends 42a, of said heels strike or dragover the top ends of said plates 44 and act to complete the swing of thelegs S2 to vertical position in which the legs are arrested by theengagement of the heels @2 with the lugs 43. The legs are then locked inthis position by the latches 35 which swing to engage them between theshoulders 3l of the latches. The withdrawal movement of the supplementalframe is arrested by the equalizing shaft ends 21a striking theabutments 3 at the ends of the channels 21.

It will be obvious from the foregoing that from the time thesupplemental and main frames are assembled and their operatingmechanisms connected, in any movement of the supplemental frame, eitherinto or out from the main frame, a parallel relation is maintainedbetween the two frames and that there is no possibility of distortion ofthe ends of the two frames at any time. The proper assembly is insuredby the spaces between the abutments 30 and the plates 28 at the forwardends of the channels, which enforce the engagement of like teeth of thetwo ratchet wheels connected by the equalizer bar into identical andcorresponding holes 29 in the ratchet rails 23, and the equalizer barmaintains identical and equal rotative movement of the ratchet wheels asthe supplemental frame is pushed into or out of the main frame.

While in describing our invention we have reierred to certain details ofconstruction and arrangement, it is understood that the invention is inno way limited thereto, except as may be pointed out in the appendedclaims.

We claim as our invention:

1. In a studio bed having telescoping main and supplemental frames, andmeans providing ways in said main frame to receive said supplementalframe, legs pivoted to said supplemental frame, each leg being providedwith a heel and depending toe, stops on said supplemental frame to limitthe rearward swinging movement of said legs, plates on the main frameadapted to swing said legs upward as the supplemental frame istelescoped into said main frame, spring-controlled latches adapted toengage said legs when in vertical position and to engage said heels whensaid legs are in horizontal position, front and rear cams co-operablewith said plates to disengage said latches, said ways on the main framenear their rear ends adapted-to be engaged by said heels to bring theminto locking engagement with said latches.

2. In a studio bed having telescoping main and supplemental frames, andmeans providing Ways in said main frame to receive said supplementalframe, legs pivoted to said supplemental frame at the rear, each legbeing provided with a heel having a depending toe, plates on the mainframe for engagement with said legs to swing them towards horizontalposition when the supplemental frame is being telescoped into said mainframe and for engagement with said depending toes to complete the finalmovement of said legs to vertical position when the supplemental frameis withdrawn from the main frame, spring-controlled means for lockingsaid legs in vertical position and for locking them in horizontalposition, iront and rear cams co-operable with said plates to disengagesaid spring-controlled means, and means carried by said Ways on the mainframe near their rear ends adapted to be engaged by said heels to bringthem into locking engagement with said spring-controlled means.

3. In a studio bed having telescoping main and supplemental frames, andmeans providing Ways in saidv main frame to receive said supplementalframe, gravity-controlled legs pivoted to said supplemental frame Vatthe rear, coacting devices on said supplemental frame and said mainframe for completing the swinging of said legs to Vertical positionvvhen the supplemental frame is withdrawn from said main frame and forswinging said legs towards horizontal position when said supplementalframe is telescoped into said frame, spring-controlled latches adaptedto lock said legs in vertical position and in horizontal position,coacting devices on said supplemental frame and said main frame fordisengaging said latches in the initial movement of the supplementalframe into the main frame and in its final movement of withdrawal withrespect to said main frame, and means carried by said ways near theirrear ends adapted to complete the swing of said legs to horizontalposition as said supplemental frame completes its movement into saidmain frame.

4. In a studio bed having telescoping main and supplemental frames andmeans providing ways in said main frame to receive said supplementalframe, gravity-controlled legs pivoted to said supplemental frame at therear, said legs each having a heel with a dependng toe, stops on saidsupplemental frame to limit the rearward swinging movement of said legs,plates at the front of the main frame adapted to be engaged by said legsto swing them upward as the supplemental frame is telescoped into saidmain frame, horizontally swinging latches adapted to be engaged withsaid legs when in vertical position and said heels when said legs are inhorizontal position, front and rear cams fixed to. said latches adaptedto engage said plates to disengage said latches, said Ways beingprovided near their rear ends with lugs adapted to be engaged by saidheels to bring said heels into locking engagement with said latches, andsaid toes being adapted to and means carried by' lngagesaid plates tocomplete thernal movement Of'said legs to vertical position when saidsupplemental frame is Withdrawn to its iinal outward position.

5. In a studiobed having telescoping main and supplemental frames andmeans providing ways in said main frame to receive said supplementalframe, pivotal legs mounted on said supplemental frame movable fromVertical to horizontal position, latches for locking said legs in eitherposi- Y tion, means for disengaging said latches from said legs in theinitial movement ofthe supplemental frame into said main frame, meansoperative to swing said legs from vertical to horizontal postion on theinward movement of the supplemental frame, and means operable as thelimit of the outward movement of the supplemental frame is reached forinsuring a reverse swing of said legs to a vertical position in lockedengagement with said latches.

EDWARD J. STAUFFER. ADOLPH KNOSHER.

